Top 30 NFL teams in history

PITTSBURGH, PA - DECEMBER 9: Quarterback Terry Bradshaw #12 of the Pittsburgh Steelers looks to pass as snow falls during a game against the Baltimore Colts at Three Rivers Stadium on December 9, 1978 in Pittsburgh, Pennsylvania. The Steelers defeated the Colts 35-13. (Photo by George Gojkovich/Getty Images)
PITTSBURGH, PA - DECEMBER 9: Quarterback Terry Bradshaw #12 of the Pittsburgh Steelers looks to pass as snow falls during a game against the Baltimore Colts at Three Rivers Stadium on December 9, 1978 in Pittsburgh, Pennsylvania. The Steelers defeated the Colts 35-13. (Photo by George Gojkovich/Getty Images) /
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Hall of Fame running back Franco Harris (32) of the Pittsburgh Steelers carries the football during the Steelers 16-6 victory over the Minnesota Vikings in Super Bowl IX on January 12, 1975 at Tulane Stadium in New Orleans, Louisiana. Harris carried the ball 34 times for 158 yards, both Super Bowl-records at the time, and scored one touchdown in earning Most Valuable Player (MVP) honors. (Photo by Sylvia Allen/Getty Images) *** Local Caption ***
Hall of Fame running back Franco Harris (32) of the Pittsburgh Steelers carries the football during the Steelers 16-6 victory over the Minnesota Vikings in Super Bowl IX on January 12, 1975 at Tulane Stadium in New Orleans, Louisiana. Harris carried the ball 34 times for 158 yards, both Super Bowl-records at the time, and scored one touchdown in earning Most Valuable Player (MVP) honors. (Photo by Sylvia Allen/Getty Images) *** Local Caption *** /

6. 1975 Pittsburgh Steelers

Of all the Steelers teams to win Super Bowls in the 1970s, the 1975 team was the best.

Pittsburgh had 11 Pro Bowlers on their roster in 1975, and were explosive on both sides of the ball.

The Steelers offense ranked 5th in the NFL, averaging 26.6 points per game. They fielded the league’s second best ground attack on the season, as well. Pittsburgh racked up over 2,600 yards on the ground, along with 22 touchdowns.

On defense, this was the peak of the Steel Curtain. Pittsburgh allowed just 17 touchdowns all season long. They ranked second in the league in points allowed with 162, an average of just 11.6 points per game. Pittsburgh held teams to single-digit point totals in seven of their regular season games.

Pittsburgh’s defense didn’t let up in the playoffs, either. They allowed just over 12 points per game in their three playoff games. They defeated Dallas in Super Bowl X, making it their second consecutive world championship. This was the game in which Lynn Swann made his two infamous catches against the Cowboys, along with a long touchdown to help the Steelers get the win. It was the best season for the best team of the 1970s.